After capturing Daniel and Arcee and acquiring the Plasma Energy Chamber key, Scorponok and the Decepticons make their way to Cybertron. The Autobots head after them, but Spike and Cerebros stay on Nebulos and come up with a strategy to use a Hive city as a weapon against Scorponok. Meanwhile, the Decepticons and Scorponok begin to threaten Earth and it is up to the Autobots and their allies to stop them.
Elenco: Frank Welker , Peter Cullen , Jack Angel , Corey Burton , John Stephenson , Dan Gilvezan , Casey Kasem , Don Messick , Scatman Crothers , Brad Garrett , Aron Kincaid , Ed Gilbert , David Mendenhall , Hal Rayle , Jim Cummings , Neil Ross , Morgan Lofting , Peter Renaday , Regis Cordic , Victor Caroli , Michael Bell , Gregg Berger , Arthur Burghardt , Ken Sansom , Chris Latta , Clive Revill , Michael Horton .